You’ll have to watch the following exclusive sneak peek to see exactly how it happens, but at a certain point in this Friday’s Dracula(NBC, 10/9c), Grayson and Renfield wind up, panting, next to each other on the floor.

Intriguing, no? What could our heroine have done to tick off the man so devoted to her? To get an idea of what goes down — and what gets broken (aside from Grayson’s heart) — press PLAY on the video below.